A survey asked the question, "What do you think is the ideal number of children for a family to​ have?" The data from the 321 responding females had a median of 2, mean of 3.22, and standard deviation of 1.33.

a) What is the point estimate for the population mean? (Exact answer. Do not round.)



b) What is the standard error for the sampling distribution? (Round to three decimal places.)